diff --git a/paddlespeech/t2s/frontend/zh_normalization/phonecode.py b/paddlespeech/t2s/frontend/zh_normalization/phonecode.py
index 06b5d41b8b606dd29d7c5960f6fa516ce249c462..51835112603c1a8c31052285276f138b8c5a74d6 100644
--- a/paddlespeech/t2s/frontend/zh_normalization/phonecode.py
+++ b/paddlespeech/t2s/frontend/zh_normalization/phonecode.py
@@ -24,7 +24,7 @@ from .num import verbalize_digit
 RE_MOBILE_PHONE = re.compile(
     r"(?<!\d)((\+?86 ?)?1([38]\d|5[0-35-9]|7[678]|9[89])\d{8})(?!\d)")
 RE_TELEPHONE = re.compile(
-    r"(?<!\d)((0(10|2[1-3]|[3-9]\d{2})-?)?[1-9]\d{7,8})(?!\d)")
+    r"(?<!\d)((0(10|2[1-3]|[3-9]\d{2})-?)?[1-9]\d{6,7})(?!\d)")
 
 # 全国统一的号码400开头
 RE_NATIONAL_UNIFORM_NUMBER = re.compile(r"(400)(-)?\d{3}(-)?\d{4}")